The rails were removed and replaced by wooden bulkheads running from bottom to top, and from transom to front bulkhead. Throttle and 3rd channel linkages run under the fuel tanks.
Seaducer 47" and CMB 91RS for NAVIGA FSR-O races (oval course). The engine has moved forwards and fuel tanks (1.6L, from I Folkson) are now between radio box and engine. Large fuel tanks are mandatory, as FSR-O heats and final last 8 and 12 minutes, respectively, plus milling time. As...